Welcome to our store! 1、OPTICAL CABLE MAINTENANCE: This fiber optic visual fault locator is designed for efficient testing and maintenance of fiber optic cables and lines. 2、LOCATE CABLE FAULTS: The fiber light test pen helps easily locate cable breaks and visually search for fiber faults, with an output distance of up to 30 km. 3、NON CONTACT: The non-contact connection method ensures that the end faces of the optical fiber and transmitter remain undamaged. 4、STABLE POWER: The fiber optic visual fault tester provides stable output power, unaffected by voltage fluctuations, ensuring a reliable tool. 5、PORTABLE AND ENERGY SAVING: The fiber optic cable tester is lightweight, compact, and easy to carry, perfect for daily maintenance work. Item Type: Visual Fault Locator Material: Aluminum Alloy Model: AUA 30 Fiber Optic Adapter: Universal Connector Output Distance: 30KM Output Wavelength: 650±10nm Operating Temperature: 0℃ to +60℃ Storage Temperature: -20℃ to +70℃ Battery Type: Requires AA battery x 2 (delivered without battery) 1 x Visual Fault Locator 1 x User Manual 1 x Ceramic Core 1 x Adapter 1 x Pen Case 1 x Lanyard Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will give you the best solution!